Problem with Virt-io Version 262 and 266 in Win11 23H2 VM

hello

i upgraded from Virt-IO Version 248 to 262 or 266
after upgrading Virt-io in the overview of the VM there is a message
,,Gast Agent läuft nicht,,

when i return to Virt-IO Version 248 the Guest Agent ist running again

this happens only to Win11 23H2 VM

a newly installed Win11 24H2 Vm works well with the new Virt-IO version 266

does anybody else has made the same discovery??
or has anybody a solution/explanation for this behavier

thanks